The breakup of weakly-bound projectiles has been shown to significantly influence scattering processes,including elastic scattering.In this context,we revisit the angular distributions(ADs)for the elastic scattering o...The breakup of weakly-bound projectiles has been shown to significantly influence scattering processes,including elastic scattering.In this context,we revisit the angular distributions(ADs)for the elastic scattering of ^(7)Li from ^(118)Sn and ^(120)Sn targets.The study analyzes ^(7)Li+^(118)Sn ADs over the energy range of 18.15-48 MeV and ^(7)Li+^(120)Sn ADs from 20 to 44 MeV,utilizing various nuclear interaction models,including the São Paulo potential,CDM3Y6 potential(with and without the rearrangement term),and cluster folding model.The results indicate that the real component of the folded potentials must be scaled down by 40-65%to achieve an accurate fit to the experimental ADs,underscoring the prominent role of ^(7)Li breakup effects.Interestingly,the conventional threshold anomaly observed in reactions involving tightly bound nuclei is not present.Further analysis using the continuum discretized coupled channels(CDCC)approach provides excellent agreement with the data,reinforcing these findings.展开更多
The angular distributions of elastic scattering of^14N ions on^10B targets have been measured at incident beam energies of 21.0 and 24.5 MeV.Angular distributions at higher energies 38–94.0 MeV(previously measured)we...The angular distributions of elastic scattering of^14N ions on^10B targets have been measured at incident beam energies of 21.0 and 24.5 MeV.Angular distributions at higher energies 38–94.0 MeV(previously measured)were also included in the analysis.All data were analyzed within the framework of the optical model and the distorted waves Born approximation method.The observed rise in cross sections at large angles was interpreted as a possible contribution of theα-cluster exchange mechanism.Spectroscopic amplitudes SA2 and SA4 for the configuration^14N→^10B+αwere extracted.Their average values are 0.58±0.10 and 0.81±0.12 for SA2 and SA4,respectively,suggesting that the exchange mechanism is a major component of the elastic scattering for this system.The energy dependence of the depths for the real and imaginary potentials was found.展开更多
The angular distributions of 7Li+144Sm elastic scattering over the energy range of 21.6–52 MeV are reanalyzed utilizing various interaction potentials.The analysis aims to study the consistency of the implemented pot...The angular distributions of 7Li+144Sm elastic scattering over the energy range of 21.6–52 MeV are reanalyzed utilizing various interaction potentials.The analysis aims to study the consistency of the implemented potentials in representing the considered data and investigate the cluster nature of the weakly bound 7Li projectile.This will aid in the better understanding the impacts of 7Li breakup on the elastic scattering channel.Strong coupling to the breakup channel has a substantial impact on the elastic data and reproduces a repulsive dynamical polarization potential,which drastically diminishes the real potential strength.This reported impact was simulated by introducing a semi-microscopic repulsive DPP and by implementing the method of continuum discretized coupled channels.The analysis was also extended to understand the impact of triton transfer on the elastic scattering data.展开更多
基金the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan(AP26194167)。
文摘The breakup of weakly-bound projectiles has been shown to significantly influence scattering processes,including elastic scattering.In this context,we revisit the angular distributions(ADs)for the elastic scattering of ^(7)Li from ^(118)Sn and ^(120)Sn targets.The study analyzes ^(7)Li+^(118)Sn ADs over the energy range of 18.15-48 MeV and ^(7)Li+^(120)Sn ADs from 20 to 44 MeV,utilizing various nuclear interaction models,including the São Paulo potential,CDM3Y6 potential(with and without the rearrangement term),and cluster folding model.The results indicate that the real component of the folded potentials must be scaled down by 40-65%to achieve an accurate fit to the experimental ADs,underscoring the prominent role of ^(7)Li breakup effects.Interestingly,the conventional threshold anomaly observed in reactions involving tightly bound nuclei is not present.Further analysis using the continuum discretized coupled channels(CDCC)approach provides excellent agreement with the data,reinforcing these findings.
基金The work was supported partially by under Sub-Program 105"Applied technological research in atomic energy"of the Republic Program 036"Development of Nuclear and Energy Projects"and the project(BR05236291)of Ministry of Education and Science of Kazakhstan Republic。
文摘The angular distributions of elastic scattering of^14N ions on^10B targets have been measured at incident beam energies of 21.0 and 24.5 MeV.Angular distributions at higher energies 38–94.0 MeV(previously measured)were also included in the analysis.All data were analyzed within the framework of the optical model and the distorted waves Born approximation method.The observed rise in cross sections at large angles was interpreted as a possible contribution of theα-cluster exchange mechanism.Spectroscopic amplitudes SA2 and SA4 for the configuration^14N→^10B+αwere extracted.Their average values are 0.58±0.10 and 0.81±0.12 for SA2 and SA4,respectively,suggesting that the exchange mechanism is a major component of the elastic scattering for this system.The energy dependence of the depths for the real and imaginary potentials was found.
基金been funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan(AP19680284)the Deanship of Scientific Research at King Khalid University,Saudi Arabia,for funding this work through research groups program under grant of number(R.G.P.2/4/44)。
文摘The angular distributions of 7Li+144Sm elastic scattering over the energy range of 21.6–52 MeV are reanalyzed utilizing various interaction potentials.The analysis aims to study the consistency of the implemented potentials in representing the considered data and investigate the cluster nature of the weakly bound 7Li projectile.This will aid in the better understanding the impacts of 7Li breakup on the elastic scattering channel.Strong coupling to the breakup channel has a substantial impact on the elastic data and reproduces a repulsive dynamical polarization potential,which drastically diminishes the real potential strength.This reported impact was simulated by introducing a semi-microscopic repulsive DPP and by implementing the method of continuum discretized coupled channels.The analysis was also extended to understand the impact of triton transfer on the elastic scattering data.
